Relevant bibliographies by topics / Sphenic number

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  1. Journal articles
  2. Book chapters
  3. Conference papers

Academic literature on the topic 'Sphenic number'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Sphenic number"

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S., Yahya Mohamed *. &. M. Prem Kumar. "A NOTE ON SPECIAL PAIRS OF PYTHAGOREAN TRIANGLE AND 3-DIGIT SPHENIC NUMBER." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 242–46. https://doi.org/10.5281/zenodo.823122.

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In this paper , we present pairs of Pythagorean triangles such in each pair, the difference between their perimeters is four times the 3-digit Sphenic number 110. Also we present the number of pairs of primitive and non- primitive Pythagorean triangles.
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Thangam, S. Aarthy, S. Vidhyalakshmi, and Gopalan M A. "Observation On The Paper Entitled “Special Pairs Of Rectangles And Sphenic Number”." International Journal of Multidisciplinary Research and Studies 02, no. 03 (2019): 01–04. http://dx.doi.org/10.33826/ijmras/v02i03-01.

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Mallika, S. "A Connection between Pythagorean Triangle and Sphenic Numbers." International Journal for Research in Applied Science and Engineering Technology 7, no. 3 (2019): 63–66. http://dx.doi.org/10.22214/ijraset.2019.3011.

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Janaki, G. "Pythagorean Triangle with Area/Perimeter as a 4-digit consecutive Sphenic numbers." International Journal for Research in Applied Science and Engineering Technology V, no. IX (2017): 320–24. http://dx.doi.org/10.22214/ijraset.2017.9047.

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Vidhya, S., and G. Janaki. "An Integral Solution of Negative Pells equation involving two digit sphenic numbers." International Journal of Computer Sciences and Engineering 6, no. 7 (2018): 444–45. http://dx.doi.org/10.26438/ijcse/v6i7.444445.

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Qi, Dewei. "Non-Spheric Colloidal Suspensions in Three-Dimensional Space." International Journal of Modern Physics C 08, no. 04 (1997): 985–97. http://dx.doi.org/10.1142/s0129183197000850.

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The translation and rotation of non-spherical particles, such as ellipsoidal, cylindric or disk-like pigment particles, in a Couette flow system similar to a blade coating system in the paper industry6 have been successfully simulated by using the lattice-Boltzmann method combined with Newtonian dynamic simulations. Hydrodynamic forces and torques are obtained by the use of boundary conditions which match the moving surface of solid particles. Then Euler equations have been integrated to include three-dimensional rotations of the suspensions by using four quaternion parameters as generalized c
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Ioniţă, C., Alexandra Guligă, Andreea Nicoleta Costache, et al. "Sphenoid sinus CT aspects." ORL.ro 4, no. 1 (2016): 8–12. http://dx.doi.org/10.26416/orl.33.4.2016.153.

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The sphenoid is one of the paranasal sinuses with the greatest number of anatomic variants. The complexity of the sphenoid sinus requires close clinical and radiological examination, prior to surgery, in order to prevent life-threatening complications during surgery. This paper presents the tomographic particularities of the sphenoid sinus in order to illustrate the importance of proper pre-operative preparation in endoscopic approach to sphenoidal sinus pathology.
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Kang, Yun Jin, Jin-Hee Cho, Do Hyun Kim, and Sung Won Kim. "Relationships of sphenoid sinus pneumatization with internal carotid artery characteristics." PLOS ONE 17, no. 8 (2022): e0273545. http://dx.doi.org/10.1371/journal.pone.0273545.

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Objective We explored the clinical significances of the relationships among sphenoid sinus aeration, intersphenoid sinus septum (ISS), and internal carotid artery (ICA). Methods We retrospectively reviewed the preoperative paranasal sinus computed tomography scans and the medical charts of 490 patients who were treated by the endoscopic endonasal transsphenoidal approach. We analyzed sphenoid sinus pneumatization, number of ISS, and positional relationships between the ICA and ISS (including ICA prominence and the thickness of surrounding bone). Results ISS were often present in the ICAs of pa
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Sumislawski, Piotr, Martyna Piotrowska, Jan Regelsberger, Jörg Flitsch, and Roman Rotermund. "Sphenoid Sinus Mucosal Flap after Transsphenoidal Surgery—A Systematic Review." Medicina 60, no. 2 (2024): 282. http://dx.doi.org/10.3390/medicina60020282.

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Background and Objectives: Skull base reconstruction is a crucial step during transsphenoidal surgery. Sphenoid mucosa is a mucosal membrane located in the sphenoid sinus. Preservation and lateral shifting of sphenoid mucosa as sphenoid mucosal flap (SMF) during the transsphenoidal exposure of the sella may be important for later closure. This is the first systematic review to evaluate the utility of sphenoid mucosal flap for sellar reconstruction after transsphenoidal surgery. Materials and Methods: A systematic literature search was performed in January 2023: Cochrane, EMBASE, PubMed, Scopus
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Nepal, Pankaj Raj, Karuna Tamrakar Karki, and Jagat Narayan Rajbanshi. "Types of Sphenoid Sinus Pneumatization among Nepalese Population." Eastern Green Neurosurgery 2, no. 3 (2020): 14–18. http://dx.doi.org/10.3126/egn.v2i3.31468.

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Background: The sphenoid sinus is a very important route during the surgical procedure for the lesions inside and around the sella tercica. With the aim to evaluate the anatomical variations of these sphenoid sinuses in the Nepalese population, this study was performed.
 Methods and Materials: This is a Cross-Sectional analytical study with a non-probability consecutive sampling. Patients of all age groups and all gender who underwent a CT scan of head for any reason were collected, excluding the patients whose sella and / or sphenoid sinus was distorted or fractured for various reasons.
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Book chapters on the topic "Sphenic number"

1

Lipscombe, Trevor Davis. "Close-Enough Calculations: Quick and Accurate Approximations." In Quick(er) Calculations. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198852650.003.0011.

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This chapter describes techniques to estimate division and multiplication by certain numbers. The purpose is to help in test taking. By knowing some ways to approximate answers rapidly, some potential answers can be eliminated, enhancing the chance of choosing the correct answer from the smaller number of remaining options. It presents easy ways to determine whether a number is divisible by 11, 17, and 19. It introduces sphenic numbers, cannonball (or square pyramidal numbers) in relation to the Kepler Conjecture, as well as the Kaprekar number. Examples are drawn from the Azerbaijan Grand Pri
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Conference papers on the topic "Sphenic number"

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Chen, Xuedong, Rong Yuan, Bing Wang, Tiecheng Yang, Pingjin Li, and Chuanqing Cheng. "Analysis of Causes for Cracking of Chinese Large High-Strength Steel Spheric Tank and Suggestion About Its Prevention." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26473.

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In recent ten years, a number of cracking cases were reported on the in-service high-strength steel spheric tank made of 07MnCrMoVR and 07MnNiCrMoVDR steels (CF-62 steel for short) which were developed in China independently. Based on field survey, actual vessel inspection and failure analysis, it is pointed out that the quality of the steels, the problems existing in design and fabrication process and incompleteness of relevant standards are the major cause of cracking. Recommendations for cracking prevention of the high-strength steel spheric tank made of Chinese CF-62 steel are proposed.
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Klug, Theodore D., Glen E. D. Souza, Tory A. McKnight, et al. "Cauterization of the Sphenoid Rostrum during SPA Ligation: Does This Technique Decrease Number of Subsequent Rebleeds?" In Special Virtual Symposium of the North American Skull Base Society. Georg Thieme Verlag KG, 2021. http://dx.doi.org/10.1055/s-0041-1725457.

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Kruisbrink, A. Ch H., H. P. Morvan, and F. R. Pearce. "Progress in Smoothed Particle Hydrodynamics to Simulate Bearing Chambers." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26403.

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In this paper some novel Smoothed Particle Hydrodynamics (SPH) concepts are presented towards a feasibility study into the use of SPH for some aero-engine applications, e.g. for internal oil or fuel applications. A first challenge is to develop a capability to model complex wall geometries, associated with two-phase flows in gear boxes and bearing chambers for example. A demonstration is made of how such complex (for SPH) geometries can be built together with an outline of some of the wall boundary condition concepts used, including moving walls. This is an important feature for the applicatio
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Journal articles
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